2 owner reports for this model.
2023 GMC Sierra 1500 AT4, about 67,000 miles. There is early surface rust on brackets, fasteners and seams underneath, but nothing structural. For a salt-belt car, what treatment slows it down withou…
For the first few seconds after a cold start I hear a metallic rattle, then it disappears and won't come back once the engine is warm. No warning lights and it drives normally. Has anyone chased some…
Automakers keep moving basic controls between touchscreens and physical buttons depending on the generation. What controls do you absolutely want to remain physical? I'd rather test this logically th…
2023 GMC Sierra 1500 AT4, about 28,000 miles. I just crossed 50k miles and want to log maintenance, unscheduled repairs, tire life, fuel economy, dealer visits, annoyances and whether I would buy the…
2023 GMC Sierra 1500 AT4, about 39,500 miles. A catalyst efficiency code came back after clearing once. The car drives normally and there are no misfire codes. Before condemning the catalytic convert…
I was focused on tow rating until I started adding passengers, gear and tongue weight. Now payload looks like the real limit. How much buffer do you personally leave for a family towing setup? Apprec…
Normal temperatures around town, but towing uphill for 20–30 minutes pushes trans temp much higher. How do you decide whether the solution is speed/gear selection, added cooling, or simply less trail…
I get a light shudder at steady throttle around 35–45 mph. If I accelerate harder or lift off, it goes away. Trying to figure out whether this sounds more like torque-converter behavior, engine misfi…
2023 GMC Sierra 1500 AT4, about 151,000 miles. Twice this month I turned the key/button and got lights but no crank. After trying again a few minutes later it started normally. Battery connections lo…
2023 GMC Sierra 1500 AT4, about 38,500 miles. We agreed on a vehicle price, then the worksheet included dealer-installed products I did not ask for. The total is now higher than before. What is the c…
2023 GMC Sierra 1500 AT4, about 66,000 miles. The car is valuable to me but not exotic. Enclosed transport costs noticeably more. When is the extra protection actually worth paying for versus a reput…
Battery passes a quick test and charging voltage looks normal, but after two or three days parked the car sometimes will not crank. What is the cleanest parasitic-draw test on a modern car that takes…
The online price looks competitive, but I am trying to judge the entire deal rather than the headline number. What should I compare besides mileage, history, condition and a PPI before deciding what…
Comparing two older enthusiast cars: one has lower mileage but thin history, the other has higher mileage with years of invoices and owner notes. Assuming both inspect well, how much value do you put…
A/C gets properly cold on the highway but becomes noticeably warmer at long lights. It cools down again almost immediately once the car is moving. Could this still be a refrigerant issue or does that…
2023 GMC Sierra 1500 AT4, about 78,000 miles. Truck is within published ratings, but with a tall enclosed trailer it gets pushed around in wind more than I expected. Before changing trucks, what woul…
2023 GMC Sierra 1500 AT4, about 37,000 miles. Filled the DEF tank but warning returned sooner than expected. Before blaming the sensor, can old/contaminated fluid or crystallization create this kind…
2023 GMC Sierra 1500 AT4, about 4,800 miles. Front tires look fine from the outside but the inner shoulders are nearly done. Car is lowered a little. I'd rather fix the alignment than just keep buyin…
2023 GMC Sierra 1500 AT4, about 48,000 miles. I saw a recall announcement that includes my model year, but my VIN currently shows no open recall. Is that usually because only a subset is affected, or…
2023 GMC Sierra 1500 AT4, about 62,000 miles. Front PPF did its job but now has a small nick that catches the light. Paint underneath appears fine. Is spot repair realistic or do most installers repl…
